Oliver never said he was alone on the island, he said we. Isabelle Wayne is more than just Bruce Wayne's daughter, she'e Oliver Queen's secret girlfriend. Oliver was going to propose after getting back from the Queen's Gambit. But, that didn't happen. Isabelle was crushed when she heard about the crash. She flew to Hong Kong in order to get away from the memories. However, her plane crashed on an island called Lian Yu. Somehow, they'd found out who Oliver was in a relationship with. Who are they? They are Edward Fyre's minions. They will stop at nothing to take down Yao Fei, a rouge Chinese general on the island. Five years later, Isabelle and Oliver are back with many, many scars. During their time on the island, Oliver had proposed to Isabelle. Though they may be safe from the island, they will never be truly safe.